P5 - External Fan; J5 - In-Out - Agilent Technologies TV 401 NSF Manual

P5 – External fan
This is a dedicated 24 Vdc connector to supply the
optional external fan.

J5 - IN-OUT

This connector carries all the input and output sig-
nals to remote control the TV 401/301/21 NSF.
It is a 15-pins D type connector; the available sig-
nals are detailed in the table, the following para-
graphs describe the signal characteristics and use.
PIN N. SIGNAL NAME
1 START/STOP (+)
2 START/STOP (-)
3 INTERLOCK (+)
4 INTERLOCK (-)
5 SPEED SETTING (+)
6 SPEED SETTING (-)
7 SOFT START (+)
8 SOFT START (-)
9 +24 Vdc
10 RELAY CONTACT: NORMALLY
OPEN
11 PROGRAMMABLE SET POINT
12 RELAY CONTACT: NORMALLY
OPEN
13 FAULT OUTPUT
14 PROGRAMMABLE ANALOG
SIGNAL (+)
15 •
GROUND
•
PROGRAMMABLE ANALOG
SIGNAL (-)
Signal description
START/STOP: input signal to start or stop the
pump. With the supplied cover connector the
START/STOP (+) signal is connected to the +24
Vdc pin and the START/STOP (-) signal to the
GROUND pin: in this condition the pump automati-
cally starts as soon as the controller recognises
the input supply ("Plug & Pump").
INTERLOCK: input signal to control the pump ro-
tation. With the supplied cover connector the IN-
TERLOCK (+) signal is connected to the +24 Vdc
pin and the INTERLOCK (-)signal to the GROUND
pin.
SPEED SETTING: PWM input signal to set the
pump speed. The PWM signal characteristics must
be the following:
•
frequency: 100 Hz +/-20%
•
amplitude: 24 V max
•
duty cycle range: from 25% to 75%
•
corresponding to a pump speed from 750 Hz
to 1010 Hz (see the following diagram).
INPUT/
OUTPUT
IN
IN
IN
If any signal isn't applied (no connection) the pump
speed is set to "High Speed" (1010 Hz max and
IN
settable by window "120").
IN
If a continuous signal is applied (pin 5 fixed at +24
IN
V and pin 6 fixed to ground) the pump speed is set
to "Low Speed".
IN
The Low Speed frequency is settable by window
IN
"117" (see para. "RS 232/RS 485 Communication
OUT
Description").
PROGRAMMABLE ANALOG SIGNAL: this out-
OUT
put signal is a voltage (from 0 to 10 Vdc) linearly
proportional to a reference quantity (frequency or
OUT
power) set by the user (0 V = 0 W or 0 Hz; 10 V =
OUT
150 W or 1010 Hz). The default setting is the fre-
quency.
OUT
FAULT: this open collector output signal is ON
OUT
when a system fault condition is detected.
OUT
76/94
TECHNICAL INFORMATION
87-900-995-01(B)